// Copyright 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
description: If there are no named captures, don't replace $<>
esid: sec-getsubstitution
features: [regexp-named-groups]
info: |
  Runtime Semantics: GetSubstitution( matched, str, position, captures, namedCaptures, replacement )

  Table: Replacement Text Symbol Substitutions

  Unicode Characters: $<
  Replacement text:
    1. If namedCaptures is undefined, the replacement text is the literal string $<.
---*/

// @@replace with a string replacement argument (no named captures).

function Test() {
    let source = "(.)(.)|(x)";
    for (let flags of ["", "u"]) {
      let re = new RegExp(source, flags);
      assert.sameValue("$<snd>$<fst>cd", "abcd".replace(re, "$<snd>$<fst>"));
      assert.sameValue("bacd", "abcd".replace(re, "$2$1"));
      assert.sameValue("cd", "abcd".replace(re, "$3"));
      assert.sameValue("$<sndcd", "abcd".replace(re, "$<snd"));
      assert.sameValue("$<sndacd", "abcd".replace(re, "$<snd$1"));
      assert.sameValue("$<42a>cd", "abcd".replace(re, "$<42$1>"));
      assert.sameValue("$<fth>cd", "abcd".replace(re, "$<fth>"));
      assert.sameValue("$<a>cd", "abcd".replace(re, "$<$1>"));
    }

}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
